David J. Drewitz, MD FACG
Dr. David Drewitz was born and raised in Milwaukee, Wisconsin. He graduated from the Medical College of Wisconsin in 1990, then moved to Phoenix to train in Internal Medicine at St. Joseph’s Hospital. After a Chief Residency at St. Joseph’s Hospital, he went on to further specialize in Gastroenterology at the combined Phoenix VA—University of Arizona fellowship program. In addition to the standard two year fellowship training, he spent an additional year dedicated to therapeutic biliary endoscopy. Upon graduation, Dr. Drewitz joined Dr. Kenny and Dr. L. Shapiro to begin a successful private practice in Gastroenterology. Dr. Drewitz’s career trajectory was steep as he juggled a growing GI practice with teaching residents and medical students, clinical research and responsibilities as Chairman of Internal Medicine at St. Joseph’s Hospital from 1999 - 2003. He is highly respected by his peers and patients and has been voted “Top Doctor” in Phoenix Magazine several times.
Michael R. Mills, MD MPH FACG
Dr. Michael Mills is the only native Arizonian of the group. He is a graduate of Brophy High School and the University of Arizona. He went to Medical School at Tulane University where he earned his Doctor of Medicine as well as Masters in Public Health. He trained in Internal Medicine at the University of Colorado Health Sciences, followed by Gastroenterology fellowship (with Dr. Drewitz) at the combined Phoenix VA-University of Arizona program. Upon completion of his two year GI fellowship Dr. Mills moved back to Colorado to take a faculty position at the University of Colorado. After three years in Colorado, where he was on faculty at the University of Colorado as well as in private practice Dr. Mills moved his family back to Phoenix to practice with Drs. Kenny and Drewitz. By active participation in local as well as national professional societies, Dr. Mills has become highly respected by his peers and is recognized as a ‘thought leader’ in the medical community. He successfully juggles a thriving private practice with teaching, clinical research and Medical Directorship of Phoenix Endoscopy. He is highly respected by his peers and has been listed in Phoenix Magazine's "Top Doctor" issue several times.
Fredrick I. Kenny, MD
The senior member of the practice is Dr. Fred Kenny who hails originally from Fairfax, Oklahoma. He attended medical school at the University of Oklahoma in Oklahoma City. Internship and residency in Internal Medicine was completed at the University of Oklahoma in Tulsa. For the next 9 years, Dr. Kenny enjoyed a successful private practice of Internal Medicine in Canyon City Colorado before deciding to become a Gastroenterologist. Gastroenterology Fellowship training was completed at The Chicago Medical School. Following several years as an Internist in private practice, Dr. Kenny went on to complete GI fellowship training at the University of Chicago. Upon graduation from fellowship he moved to Phoenix, Arizona and joined Physicians Professional Corporation, one of the oldest Gastroenterology practices in the downtown area. Dr. Kenny is perennially voted “Top Doctor” in Phoenix Magazine and highly revered by both his patients and physician colleagues.
Bruce D. Noland, MD
Dr. Bruce Noland was born and raised in the small farming community of Jefferson, Iowa. He graduated from the University of Iowa College of Medicine then moved to Phoenix to train in Internal Medicine at Good Samaritan Hospital and Medical Center in 1988. He received specialty training in Gastroenterology at Carl T. Hayden Veterans Administration Medical Center and the University of Arizona. Following fellowship he practiced gastroenterology for the Mountain Park Health Center for 2 years. In 1996 he joined Southwest Gastrointestinal and Liver Disease Consultants in central Phoenix. In January, 2004, Dr. Noland joined the Digestive Health Center of Arizona. Over the years Dr. Noland has earned the respect and admiration of his patients and peers. In 2000 he was voted “Top Doctor” in Phoenix Magazines annual survey of the best doctors in the Valley.
Eugene F. Tharalson, MD
Born and raised in Seattle, Washington, Gene Tharalson attended Seattle University, a Jesuit school in the center of the city. A major in chemistry gave him the opportunity to work as an atmospheric chemist for the year following graduation. In spite of challenging work that took him all the way to Antarctica, he very quickly realized that this would not be the career path for him. Nine months later, he enrolled at the Medical College of Wisconsin (Go Packers!). His first interest in gastroenterology developed during an elective rotation as a medical student, and continued throughout his residency at the University of Arizona in Tucson. After serving there as a chief resident, he entered gastroenterolgy fellowship at the Phoenix VA/Good Samaritan program. There his interests included endoscopic ultrasonography, Barrett’s esophagus, and the natural history of cirrhosis. In addition to developing his skills in gastroenterology, he became known during his fellowship as a dynamic speaker. Perhaps his best-known lecture is an in-depth review of intestinal gas. His career goals include general gastroenterolgy practice with an emphasis on endoscopic ultrasound. He now resides in Scottsdale with Erin, his wife of three years.

Adam Randolph, MD
Dr. Adam Randolph was born and raised in Mt. Carmel, IL. He did his undergraduate training at the University of Illinois Urbana-Champaign. His medical school training was at Rush Medical College in Chicago, IL. After this, he moved out to Phoenix, where he completed an internship, residency and chief residency in internal medicine at the Banner Good Samaritan/VA Medical Center program. His special interests include hepatobiliary disease and quality control measures in endoscopy. Dr. Randolph lives in Peoria with his wife and two children.

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